MATH 1ZC3 Lecture Notes - Lecture 3: Mexican Peso, Mxr, Tiger Ii
Document Summary
I eg x12g 32 0 can"thasnosolution solutionmutesco o o. 2x y 12 asoneofthe oo x o ifunknowns xn morethanequations m then equationshasinfinitelymanysolutions trivial solution allsolutions o a eg i 2 4 5 o. Areingeneral asystemwithmoreunknownsthanequations is either inconsistent 000d infinitesolution or. Amn entryin wwi column a man matrix matrix ofm row n columns notation towns x columnnext. In xn i matrix with thesame ofrowsandcolumns mindingnal. Trivet addition if 2matrixarethesamesizetheycanbeadded otherwise theanswer is undefined addcorrespondingentries ii"s. 2 matrix matrix if a is mxr and b is rxh thenc ab isthe mxnmatrix whose ci. My outsidedimensionsdeterminesthesizeofab mxn dotprodyn. gg nw q ga axxibxy. az ascala eg a l f i. P b a notdefined ast 34 2 3. I 16answerwouldbedifferentaswell e. g a e s4 a y"s it ba fi. Matrixformoflinearsystem e. g 3x 14 2 1 3 6 ix taxi equatalentto am xk. i. Coefficient metrix reverserewardcolumn nxm turningthe rowsofas intocolumns inanorder matrixtranspose.